Fire-box foundation ring



1 L. NEEBE FIRE BOX FOUNDATION RING Oct. 16., 1928.

Filed Jan. 29, 192e W t. lm@ J w HNSVWM .e wim 9 O .m Mmm 2 .01, W5 ww L@ Oct. 16, 1928. 1,688,203

L. NEEBE FIRE BOX FOUNDATION RING Filed Jan. 29. 1926 2 sheets-sheet 2 Patented 'ct. liti, i923.

UNITED STATES i YiAViJ'RIENGE L.' NEEBE, 0F' NEVI JERSEY, ASSLCGNOR LOGOM'OTIVE WORKS, OF PHELADELPHEA,

PENNSYLVANIA.

Parmarl omer.

To 'ann nnrnwnr FIRLELBUK FOlIlDATON" RNG.

rilhe object oii my invention is to make a boiler iire bon foundation ring oit a single casting, having side members, end members,

and a longitudinal central member, which, ltogether with the side members, support thev gratos of the lire box. f

The invention also relates .to means for se*4 4curing the waist otthe boiler to the ring, to means for carrying the iire wall which separates the iirec'lramber trom the combustion chamber.

Vihe toun-dationring is designed forl a locomotive boiler, but it will be understood. that the invention can. be used in connection with other boilers oi'l the locomotive type.

In the accompanying drawings:

Fig; 1 isi a plan View or' my improved tire boi; foundation ring Y Fig'. 2 is a side view line 2 2', Fig; 1

Fig. 3 is a longitudinal section on the.V line 3 3, Fig. 1

Figi. if is an end view ol? the forward end of the ring;

Fig. 5fl is an end view showing the rear end of the ring; i i

Fig. 6 is a transverse section on the line 6 6, Fig. 1;

Fig. 7 is a transverse line 7 7, Fig. 1; Y

Fig. 8 is an enlarged sectional view on line 8 8, Fig. 1.

Fig. 9 is a longitudinal sectional view of part of a locomotive lire-box illustrating my invention. y

The foundation ring is the bottom portion of the lire box of a locomotive boiler, and is made hollow so that it acts as the lowest circulating chamber and also asthe muddrum. The ring is rectangular, as clearlyshown in F ig. 1, and has tubular longitudinal side members 1 1, a tubular front member 2, and a tubular rear member 3. The end members are connected to the side members so that there will be a .tree circulation of water in the ring.

At the center of the ring is a longitudinal hollow bar a, which extends the full length et' the ring and communicates with the tubular end members and 3, as clearly shown in Figs. 1 and. The longitudinal member acts as a central support for the grate-bars, which are carried by the side members 1 and the central member 4. s

A hollow transverse member 5 extends partly in section on the sectional view on the the from one side member to the other `and inten sects the central member fl, and also-communicz' tes with the sid-o members, so that there is free circulation ot water throughout all of the members. This transverse member f5 is at the rear oi' thek combustion.chamber and acts a support for the tire-wall a, `and'also has openings 6 for the supporting tubes which extend to the upper portion oi'V the b'oilerwith'- in the tire-box and carry the inclined iirebrick deiector-o. 1n the space in front of the lire-brick arch supported by the transverse member 5 is a combustion chamber cZ and the open spaces in the ring are closed by plates llig. 1.

The central longiudinal member 4l has se-A riesV of vertical tubes 3, which extend through the section and are open at top and' bottoni, being iianged' over theV upper and lower Wal-'ls ofthe member 4C, as clearly shown in Fig; 3'.

These4 tubes supply air tothe lire directly over the central bar, thus preventing the burning out ot the central section of the grate. L` The forward end yof' the ring is made a shown in Fig; 4l, and has hang'es4 9 and 10 by which it is secured tothe waist of theboiler, and openings 11 which communicate with the lower portion of the boiler through pipes, so that a circulation is maintained. Depending from the transverse member 5 and the rear member 3 are flanges 5n and 3a, respectively, to

' which waist-sheets are attached.

In each of the side longitudinal members 1 1 is a series of holes 12 to which vertical side tubes ot the :lire boi; are coupled. These tubes extendto an overhead structure in the ire-box, as fully disclosed in my pending application led on the 23rd day oin October, 1926, Serial No. 143,777.

The ringhas a vertical iiange 13 on each side to which the tire-box cover plates are attached, and has a flange at the. rear end as at lll for attachment to a rear cover plate.

Directly members'1 1 and back member 3 and alsounder the openings 6 in thetransverse member 5 are plug openings 15, which when the plugs are removed, allow a tool to be inserted by which access can be had to the tubes which are coupled to the ring.

16 are blow-oli openings at each side of the ring opposite the transverse member 5. There are openings 17 at each side of the structure in line with the channel at the forward end of under the 'openings 12 in the side 18 are closed by plugs. plugs, access can be fire-chamber.

I claim Y f l. A re-box'foundation ring made as an integral casting, and having longitudinal holloW side` members; hollow end membersi a hollow longitudinal kcentral member Vcommunicating with the end members; anda transverse hollow member intersecting the central longitudinal member and communicating with the side members.

2. A foundation ring for a lire-box having a fire-wall, said ring being made in a single casting, and having hollow longitudinal side members;vhollow end members; a longitudinal hollow central member; and a hollow vtransverse member intersecting the central member, the said transversey member being on a .lme'with the tire-wall ot the lire-box and having openings for tubes, and the side members having openings in the upper surface for vertical tubes located at the sides of the fire-box structure. l

B. A foundation ring for a lireboX having a fire-wall, said ring being made in a single casting, and having hollow longitudinal side members; hollow end members; a longitudinal hollow central member; and la hollow transverse member intersecting the central member, the said transverse lmember being on a line with the lirewall of the tire-box and having openings for tubes, and the side members having openings in the upper sur# tace tory vertical tubes, located at the sides of the` lire-box structure, the central longitudinal member having a series ot tubes eX- ltendingvert-ically through the said member and open at top and bottom to admit air to `the fire over the central member.

l. A hollow rectangular tire-box foundation ring having hollow end memberscommunicating with hollow. side members; a longitudinal hollow member extendingv the full length of the ring and communicating with the end' members; a transversemember intersecting the central member and communicating with the side members; and plates covering'the openings between the ront end member and the transverse member and between the longitudinal end member and each side member.

5. The combination in a rectangular fireboX foundation ring, having two hollow longitudinal side members; hollow end members communicating with the side members; a longitudinal central member; and a transverse member intersecting the central member and y communicating with the side members, 4the torwardend, back end and transverse members of the vring having flanges by which the waist-sheets of the locomotive are attached to the said ring, and having yvertical langes around the sides and back to which cover and supporting plates may be attached.

I LATVVRENCE L. NEEBE. 

